Pile-shearing mechanism for pile-fabric-making looms



Sept.- 9, 1930.

J. A. coYLE PILE SHEARING MECHANISM FOR PILE FABRIC MAKING LOOS Filed Marqus., 192s s sheets-sheet 1 INVENTOR ""ATTORNEY Anl:

J. A. COYLE Sept. 9, 1930.

PILE SHEARING MCHANISM FR PILE FABRIC IAKING LOOKS 5 Sheets-Sheet 2 Filed mmhv as', 1928 NVENTOR /oa BY 90h f2 Coyle,

aas ATTORNEY s ePfyg, 1930. J. A. coYLE I .1,775,515

PILE SHEARING MECHANISM FOR PILE FABRIC IAKING LOOKS Filed March 28, 1928 l5 Sheets-Sheet 3 INVENTOR dose/afa. /7. Coyle w ATTORNEY spreading and `,distortion of the design, the

Patented Sept. 9, 19730V JOSEPH A. ooYLE,` OEAMSTERDAM, NEW YORK, nssioflvoit,` BY MESNE ASSIGNMENTS,

To EIGELoW-SANEORD CARPET co., -INC.,n.oo3PoRATioN cF AMAS;SAonrrsiix'rrs PILE-SHEARING MEcHANIsM Forti'1?1,Ilifi-EliiitioiinnirINGcoinsV f i Application led March 28, Seljalhfl `The present invention relates to pile shearing mechanisms for pile fabric makinglooms and an object thereof is to provide a` mechanismwhich will make it possible to cut the 5 pile closer to the'body of thefabric. Y To this and other ends the invention con-` sists of certain parts and `combinations of pa`rts,\ally of which` will be hereinafter described :the novel features being pointed out l i loin the appended claim.

f In the drawings: e

Fig; l isa side `view of the frame of an Axminster loom machine Vshowing the shearing mechanism;

Fig.` 2 is a plan View of the same parts;

Fig. 3 isa detail view of the mechanism for operating the blades; and

I Fig.v 4e is an enlarged detail view showing the manner in which the blades operate to cut the pile.

Prior tol this inventionthe shearing mechanism of a `loom formaking pile fabric has been so constructed that the cutting ofa shortd pile has been'impossible, due `to the fact, that the shearing mechanism was so constructed that the completedV pile surface would interfere with the shearing blades and prevent the blades being brought nearerto the pile fabric. As a result Axminster rugs and carpetsmade on looms have had long pile sur faces which havenotonly required the use i l of a greater amount of yarn in the material inthe pile but have produceda surface which has been objectionable inmany respectswith the trade, some" 'of objections being the shadingof the design and' impossibility of bringing out the color variations in the desien. v

i t:lrccording to thisinvention, it is possible Vto cut the pile much shorter and to reduce the pile surface is reducedrtO `a yminimum so that Athe brushing may be reduced in amount eliminated. t e Y lnftiliefiiiiialnea @warmem ffii all vention, lpfindicatesa; breastplate over which the, finished pile f fabric `2itr`a`vels. e The "welav mechanism ifor weaving this textile maf` terialjmay of anyllsuitable constructionl` Theshearing- 1`n`` chanisn`i""comes` aan' after @sur operation (sf-wiping ing? the pile forming yarn and severs the ,wipedin` poruonyfrom immaterial on thespoi; f 1,; shearing mechanism in thisembodif ment comprises a rear `blade 3` U e blade-4, the former being mountedjon a blade" carrier 5 andl the `latter" on "a plbladeej" carriei; Y

6. beth `,Calliers being" be@ .extendhs trans# versely of the `machine and havingjtheir ends movable on ranged at slight/angles "tofeach `other and Aadguides,7"`and8"respectively, ar!

ju-sebleiwnysuieblfmanne@athesme i Offfhe'frechine either@ change thermales with,referee:fovrhefbresrnad;orfwrbe revd#Qwlrdfbrfrm .the "biast`"r`ilatet cut tliepile-fshorter Kor longer.` .[Wh'e bladesf 3 ad israel@ afmeting mais. 'the from blade passing beneath and cooperating "with" the undersideiof thefrearblade Theedge 'a shearingaetion takes placwhentheblades cooperate, The blade 3 has cutting ledge, when "infcutting'tpositiori, substantially' over e thelnewly rwiped'in portion of the fabric, while the, blade' operates over Vthe "finished portion dftuieyfabric between the blade 3 and the fabri'c55`1- The lfunden surface rof blade2i hasa bevel l1` which, when Ain cutting" position diverges with reference" tothe surface fof thefiaished ,fabriejsofthafa does not of the bladel Slis` a'gjstraight line"v'vhile thef1 A bladeflfrom itscentraljportion 10 diverges engage. said" Vfabric in its operationeexcept at" t' the portiontotbe cut, and thereafter itsrcutting-edgepasses toward the unfinished porf i face to interfere withV its movement.`

Any suitable meansmay be employed .for i `tion of the `fabric where there is no pile surkdrive shaft 12 has three cams thereon, namely i acentralcaml and two end cams14, the lat-` -1 .ter two being duplicates of each other., The

caml cooperateswith a roller 15 ona lever 16, which has a link 17 pivoted to its outer end, the link also is pivoted to the lower end of a double arm lever 18 pivoted at 19 to the frame of the machine and having its other arm pivotallj)7 connected to a link 2O which connects a knife carrier 5 at 21. The cams 14 cooperate with rollers 22 on levers 23 which are pivoted at 24 to the frame of the machine and which have their upper ends pivotally connected to links '25 pivotall-v connecting at t 26 with .opposite ends of the knife carrier 6. The cams 13 and 14 are so formed that the knife carrier first advances to cutting position and is held there during the cutting. The knife carrier 6 advances later and causes its knife `4 to vengage with the knife 3 and `.cuts the yarn from theY spool as well as trims the fabric to the desiredthicklless.

From the foregoing it will be seen .that there has been provided a pile fabric making loom having a shearing mechanism which is adapted ,to cut the pile at an7 desired thickness, making i-t possible to produce an Axininster rug or carpet having a short compact pile, to reduce the amount yof-material employed in the pile loops and to obtain a fabric which does not spread or distort the design, has no shading effect -and has its color variations brought out distinctly.

What I claim as my invention and desire to secure by Letters Patent is .z

In ycombination with al loom yofthe type for making Axniinster 4carpets or rugs and-having a support over vwhich the' nished pile fabric is fed, a shearing mechanism comprising two cooperating blades, one of which has its under side in a single plane throughout its width and its upper Vsurface bevelled adj acent its cutting edge, said blade moving over the unfinished portion of the 'fabric to engage the latest wiped in portion of the fabric on the bed and the other ,of said blades moving over yand toward the finished portion of the fabric on the support to engage'said latest wiped in portion on the bed and engaging the first mentioned blade on the under side of the latter, the second blade having its upper surface in a single plane throughout its widthv and its lower surface bevelled adjacent its i cutting edge and .diverging from its cutting edge relatively Ito the yfinished portion in immediateproximity to said wiped in portionso as not to engage lthe finished portionexcept at the latest wiped in portion.

y JOSEPH A. COYLE. 

